On the week that featured the most passing touchdowns in NFL history (started off by Peyton Manning’s seven in Thursday night’s season opener), you would expect games to have trended heavily towards the OVER.

But that surprisingly wasn’t the case with the total splitting at eight UNDERs and eight OVERs in Week 1.

Interestingly, there was a pretty significant time-based split which would have made interesting opportunities for those who like to place an NFL teaser bet or two.

Sunday’s early games went 8-2 on the UNDER, with Minnesota 24 - Detroit 34 and Cincinnati 21 - Chicago 24 the only two games that didn’t go UNDER. But the two afternoon games, Thursday Night Football, Sunday Night Football, and Monday Night Football all went OVER the total at 6-0.

Underdogs held the slight betting edge at 8-7-1 ATS in Week 1, with the week’s two biggest dogs covering the spread. The Oakland Raiders were an 11-point underdog on the road against the Indianapolis Colts and the Buffalo Bills were a 10-point underdog at home against the New England Patriots.

Both the Raiders and the Bills actually held leads in the fourth quarter and both went on to lose SU, but got off to 1-0 ATS starts.

Of eight ATS covers by underdogs, half came with outright upsets; Miami +2.5 over Cleveland, Tennessee +6.0 over Pittsburgh, NY Jets +4.0 over Tampa Bay, and Philadelphia +4.0 over Washington on Monday night.

The Jets came into the season considered by many to be one of the worst teams of the league along with the Oakland Raiders and Jacksonville Jaguars, but came away with an 18-17 upset at home over Tampa Bay.

Jacksonville certainly looks like the worst team in the league right now coming off a 28-2 loss to Kansas City, and is a 6-point underdog this Sunday in Oakland.

Along with Over/Under splits and ATS splits, home/road splits were pretty much right down the middle in Week 1 as well. Home teams held a slight edge at 9-7 SU and 8-7-1 ATS, but there wasn’t much separation here.

With everything so evenly split, we head into Week 2 still waiting for some clear 2013 season trends to develop. Computer picks courtesy of OddsShark.com.